No kitchen range or stove in any building shall be placed less than three feet from any woodwork or wooden lath and plaster partition, unless the woodwork or partition is properly protected by metal shields, in which case the distance shall be not less than eighteen inches. Metal shields shall be loosely attached, thus preserving an air space behind them. Hotel and restaurant ranges shall be provided with a metal hood, placed at least nine inches below any wooden lath and plaster or wooden ceiling, and have an individual pipe outlet connected with a good thick flue. The pipe shall be protected by at least one inch of asbestos covering or its equivalent.